2001 Leonids produced numerous electrophonic sounds. Read more on science@nasa

All data collected by GEFS will be
made public through "GEFS Newsletter" and WGN, the journal of the
International Meteor Organization (IMO),
with full reference on witnesses.

GEFS (Global Electrophonic Fireball Survey) is a project
of the University of Kentucky and Ecole Polytechnique Federale de Lausanne
(EPFL) with the purpose of collecting witness reports of electrophonic
sounds from meteors and coordinating research efforts.